<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>4-Symbol.prototype.description</title>
</head>
<body>
    <script>
        // 创建 Symbol
        let s = Symbol(`尚硅谷`);
        console.log(s.description);
    </script>
</body>
</html>